2. In this question we will combine a very simplified model of an externality that has long-lasting impacts with the model of discounted utility that we learned in our game theory topic. Consider a hypothetical environmental externality: produced as the byproduct of industrial activity, each unit of emission of a pollutant that is emitted once, today, causes $10 of external harm to society each and every year, starting immediately, forever. Let's say that policymakers apply a discount factor of 8 € (0, 1) to future gains and losses, in an analog of the discounted utility model except for cash payoffs rather than utilities. What would the socially efficient Pigouvian tax on the emission of this pollutant be if we applied a discount factor of (i) 8 = 0.5, (ii) 8 = 0.9, and (iii) 8 = 0.99? Give an intuitive explanation of how to interpret the parameter d in this context, and explain precisely but in simple terms what the goal and effect of the Pigouvian tax would be.

2. In this question we will combine a very simplified model of an externality that has long-lasting impacts with the model of discounted utility that we learned in our game theory topic. Consider a hypothetical environmental externality: produced as the byproduct of industrial activity, each unit of emission of a pollutant that is emitted once, today, causes $10 of external harm to society each and every year, starting immediately, forever. Let's say that policymakers apply a discount factor of 8 € (0, 1) to future gains and losses, in an analog of the discounted utility model except for cash payoffs rather than utilities. What would the socially efficient Pigouvian tax on the emission of this pollutant be if we applied a discount factor of (i) 8 = 0.5, (ii) 8 = 0.9, and (iii) 8 = 0.99? Give an intuitive explanation of how to interpret the parameter d in this context, and explain precisely but in simple terms what the goal and effect of the Pigouvian tax would be.

Essentials of Economics (MindTap Course List)

8th Edition

ISBN:9781337091992

Author:N. Gregory Mankiw

Publisher:N. Gregory Mankiw

Chapter10: Externalities

Section10.1: Externalities And Market Inefficiency

Problem 1QQ

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